Inking device for printing-presses



H. L. SARGENT.

INKING DEViCE FOR PRINTING PRESSES.

APPLICATION FILED APR..29. 191

1,358,021. j Patented NOV. 9, 1920.

4 SHEETS-SHEET I.

In Qen 1. 01- W J? M z H. L. SARGENT.

INKING DEVICE FOR PRINTING PBESSES.

APPLICATlON FILED APR. 29, 1913.

1,358,021. PatentedNov.9,1920.

4 SHEETS-SHEET 2.

a1- H I l P lllllllllll Minna-mu 1 a. 43 lllllllilllli H. L.' SARGENT. INKING DEVICE FOR PRINTING PRES SES.

AP ucATmN FIL'ED APR.29, 1918. I 1,358,021.. Patented Nov. 9, 1920.

4 SHEETS SHEET 3.

H. L. SARGENT.

PNKING DEVICE FOR PRINTING PRESSES.

APPLICATION FILED APR.29, 191s.

Patented Nov. 9, 1920 4 SHEETSSHEET 4.

umrsn srArss PATENT oFFicE.

HERBERT L. sanenn'r, or SALEM, MASSACHUSETTS, essrenonor ONE-HALE r0 LEONARD B. rrcxnnme, or SALEM, MASSACHUSETTS, AND -'onE-rrALr To, MARY E. SARGENT, or DANVERS, MASSACHUSETTS.

INKINQ DEVICE FOR PRINTING PRES SES.

To all whom it may concern:

Be it known that I, IIERBERT'L. SARGE'NT, a citizen of the United States, residing at Salem, county of Essex, and State of Massachusetts, have invented an Improvement in Inking Devices for Printing-Presses, of which the following description, in connec tion with the accmnpanying drawings, is

a specification, like characters on the drawings representing like parts.

.lhe invention to be hereinafter described relates to inking devices for printing presses.

These presses are usually provided with an ink receptacle, adjacent the rotary ink distributing disk, to supply ink to rollers which pass over the disk and across the face of the form to ink the same. Different classes of work require the ink to be fed from the ink receptacle at widely varying speeds and with a nicety of gradation. For example, a hard, highly glazed paper requires less ink than a soft, roughpaper. Also, for any one class ofwork the same amount of ink should be fed to the rollers and applied to the form for each impress, in order that successive impresses may be of uniform character.

One of the objects of the present invention is to provide simple and effective means whereby the ink .may be fed from the ink receptacle with a desirable nicety of ad ustment in conformity with the requirements of the character of work to be produced, and whereby the ink may be fed at a uniform rate for production of successive 1mpresses of the same quality for any selected class of work.

Another object of the invention is to provide an inking device having a receptacle which may be easily applied to and removed from the press to facilitate replenishing the supplyof ink and substitution of inks oi different color or character.

And still another object is to provide simple and effective means for transmitt ng movement from ;.a rotating member of the press to means for feeding'the ink from the ink receptacle.

With the aioresaid and other objects 111 view. the character of the invention will be best understood by reference to the follow- Specification of Letters Patent. Pate t d N 9, 192

Application filed April 2-9, 19.18. Serial No. 231,334.

ing description of one good form thereof Figure 1 is a side elevation of a portion of,

a printing press equipped with an inking device embodying the invention;

Fig. 2 on an enlarged scale is it side elevatio-n of the inking device; 1

Fig. 3 is a transverse section taken on line 3.3 of Fig. 2;

Fig. tis a side elevationof the lower end of the ink cylinder; V

Fig. 5 is a plan ofthe inking device;

Figs. 5 and 5*. show portions of the arm and plate containing openings through which the rec-iprocatory cone headextends;

Fig. 6 is a Vertical section taken on line 6-6 of Fig. 5,; 1

711s a plan of the controller. ratchet;

Flgs. 7 -7 and 7 show details to be referred to; a

Fig. 8 is aplan .of the notched disk driven by the controller ratchet;

Fig. 9 is a plan of the ratcheticonnected to thepiston feed nut; a

Fig. 10is a plan of the pawl for engagement with the notched disk; and

Fig. 11 is a vertical section taken on line 11-11 of Fig. 161. v

Referring, to the drawings, and more particularly to Fig. 1, wherein isshown :a por tlon of a printing press including a platen lopposed to aform 3 carried by a stationary head .5 which also supports the rotary ink distributing disk 7. Ink rollers 9 are adapted to move over said disk under the control ofrods 11 adapted to slide in an oscillatory frame 13, said rods being urged in a direction to press the rolls against said disk by coil springs 15 encircling said rods, and confined between one end of said frame and pins 17 extending through said rods; The oscillatory frame 13 may be rocked to cause the rollers to reciprocate over the ink distributing disk and form to ink the latter, and the oscillatory platen may be rocked toward the head to produce the impress by mehanism well known in the art, and therefore, unnecessary to show and describe herein. 7

The inking device shown herein as one good form of the invention comprises an ink receptacle conveniently in the form of a 7 cylinder 19 (Figs. 2 and 6). having a head 21 at its lower end provided with a discharge slit 23 (Fig. 3) and having an out.

Suitable means may be provided to posi-. 'tion the ink cylinder adjacent the ink distrilcuting'disk. To accomplish this, in the present instance of the invention, a ring 29 (Figs; 2 and 6) is provided formed to fit the cylinder, and projecting laterally from the lowerend of an arm 31 depending from a plate 53. The upper end oi: the cylinder is open and adapted to fit in a shallow socket 35 on the underside of the plate To detachably'secure the cylinder in working position in the ring and socket, the cylinder may have a lug 37 thereon adapted to pass througha slot 39 in thering, the construetioi'i' being such that the cylinder may "he slid up through the ring and'may'be may be i (Fig. '6) may be h provided with a r.

given rotative adjustment to cause thelug to register with the slot, Then further upward movement of the cylinder will cause the upper end thereof to be seated in the socket 235 and will bring the h1g3? above the upper edge of the ring 29.. Slight rotation of the cylinder will move the lug 37 out registration with the slot and lock th cylinder in position. .The arm 31 may secured by screws l-l to a curved bracket (Figs. 1 and 6) having its lower end co;unected to the upper end of the oscillatory head by a bolt 45 having a wing nut 4&7. ii flange or shoulder 49 formed on. said bracket may engage'a partot the head to limit rockingof the bracket in a contra-clockwise direction (Fig. l). The construction is such that on release of the wing nut' ii", the

bracket may be rocked in a clockwise direction to allow ready insertionof theinlr c; inder into its ring and socket and removal therefrom.i Ayplurality of cylinders such as described may be provided to contain inks of dilierent color or character as reo red. The construction is such that one'cylinder V quickly and easily substituted for another.

Next willbe described met the ink from the c linder. this, in the pres instance,

d in said sl-r pad same to prevent lea ge oi ink up piston. ii stem projects upu idly mm the piston through the open end of the cylinder and through an opening in the plat. 33, said stem being threaded to a sleeve nut 57 having a flange for engagement with the under face of the platej33 to confine saic cylinder through. the sl t nut against upward movement. Rotation the nut will cause the stem and piston'to move downward and io cethe ink from the i 23. in important feature of the invention reto means for rotating the nutto 5 the piston. This means, in the present instance', comprises a ratchet 61 (Figs; 6 and 9) fast on the sleeve of said nut and adapted to be advanced step by step by a pawl secured by a screw (Fig. 11) on the lower squared end of a ain (37 pivotally mounted in an 69.1"ulcrumed on the sleeve of the nut and projecting laterally therefrom, as will be noted in Figs. 5 and 6. Thepawl may be urged toward the ratchet by a coil spring 71 having one end connected to the heel of said pawl and its opposite end connected to'a pin 73 on the arm 69. Suitable means may be provided to oscillate said arm and cause the pawl to advance the ratchet step by step- To accomplish this, the arm 69 maybe ura'ed in one direction by coil spring 75 having one end connected to the pin 73 and its opposite end connected'to a pin 77 on an arm 79 projecting laterally from the plate 33. The arm may be moved in the opposite direction by a conical head 81 tapering downward. and projecting through openines 83 and 85 in the arm 69 and plate 33 respectively. Arod 86 projects downward from the'conical head to a crank 86 (Fig. 1) fast on a shaft 86 which may be given one complete rotation by any suitable means each time the oscillatory platen rocks toward and from the form. The construction .is such thatrotationv of the crank 86 will reciprocate the rod 86 and the conical head 81 in the openings 83 and When the conical head is in its upward or more teeth depending upon the extent v the pawl is retracted.

In the present instance, the. ratchet 61 is provided with ninety-six teeth, so that if the pawl advances the ratchet one tooth on each reciprocation thereof, the ratchet will move one complete rotation on ninety-six reciprocations of the ratchet." This will r0- tate the sleeve nut and gradually move the piston downward in the cylinder and force the ink through the slit in the head thereof.

As stated, it is desirable to vary the amount of ink fed according to the character of the work. To this end suitable means may be provided for preventing the pawl 63 from being .eiiectivetoifadvance the ratchet 1 ery thereof with blank portions 91 between them. This disk may be loosely mounted on the sleeve of the nut, and may be provided with .suitable means forladvancing the same, a step corresponding-to a tooth of the ratchet 61 on each reciprocation of the pawl 63. ing means comprises a ratchet 93 mounted loosely on the sleeve of the nut and connected to the controlling disk 87 by a pin 95 (F ig. '6) projecting upward through a hole 97 in said controlling disk. To advance the ratchet 98 step by step, a pawl 99 (Figs. 6 and 11) may be loosely mounted on the pawl pin 67, referred to, and may be urged toward its ratchet by a coil spring 101 having one end connected to theheelof the pawl 99, and its other end connected to a pin 103 on the arm69. .The constr uction is such that each reciprocation of the arm 69 will reciprocate the pawl 99 and cause the same to advance the ratchet 93 and controlling disk 87 a step.

Cooperating with the controlling diskis a pawl 105 .(Figs. 6 and 11) secured by a screw 107 to the upper squared end of the pawl pin 67 referred to. Since the pawl 63 and pawl 105 areiiast on the same pin, they will rock together, and the pawl 63 will be permitted to engage the ratchet 61 each time the pawl 105 drops into a notch in the controlling disk. In. the present instance,

said disk contains sixteen notches, and therefore, in ninety-six reciprocations ofthe arm 69 the pawl 63 will be effective to advance the ratchet 61 sixteen steps, thereby reducing the speed of feed of the plunger.

I It may be desirable to still further reduce the speed of feed of the plunger. To accom plish this, an auxiliary notched controlling disk 109 (Fig. 5) maybe provided loosely mounted on the sleeve of the nutan'd rotatively adjustable with respect to the 'con trolling disk 87 to vary the effective length of the blank portions 91 thereof. 111 the present instance, the auxiliary controlling disk is susceptible of six positions ofrotative adjustment with respect to the controlling disk 87 determined by the registry of holes 111, 112, 118, 114, 115and 116 with the pin 95, referred to, projecting upwardly from the ratchet 93.

When the hole 111 registers with the pin 95, three notches in the controlling disk 87 will be exposed and the pawl '63 will be permi'tted to advance the ratchet 61 three steps in ninety-six reciprocations of the arm 69 01- in one complete rotation of the controlling disk. When the hole 112 registers with.

the pin 95, five notches of the controlling.

disk 87 will be exposed; when the hole 113 In the present instance,this advancregisters with thepinw95,eightqnotches'of i the controlling diskwillbe exposed; when the hole 114 registers with the pin 95, eleven notches of'the controllingdi'sk will be ex posed; when the hole 115 registers with the pin :95, thirteen notches of the controlling disk will be exposed; andwhen the hole.116 registers with the pin 95, sixteen notches of the controlling disk will be exposed.

It may be desirable to provide further gradations of feed of the piston. To accomplish this, the extent of reciprocation of the arm 69 may be varied, so that the pawls 63 and 99 instead of advancing their ratchets a step equal to one tooth, mayadvance their ratchet steps equal to two or three teeth. To accomplish this, a pin 117 (Fig. 5) may be mounted on the plate 33 inthe path of movement of the arm 69. When the pin 117 is in the hole 119, the arm 69 may reciprocate to cause the pawls to advance their ratchets anextent equal to one tooth; when the pin is in the hole 121, the pawls may advance their ratchets an extent equal to two teeth; and when the pin is in the hole 123, the pawls may advance their ratchets an extent equal to three teeth.

The use or" the three extents'of reciprocation of the arm 69 in combinations with adjustment of the auxiliary controlling disk to cause its holes 111 to 116 to register with the pin 95, and the removal of the con trolling and auxiliary controlling disks, enables variationsof speedof feed as specified in the following table Ntu n;1 bpr plf Numberofteeth eat rat-c isaaaraaaa assert with pin 95. .gggg, advance 11196 C reciprocations of arm 69.

111 1 3 112 1 5 113 1 g 114 1 11 111 2 12 115 1 13 116 1 16 112 .2 20 111 3 27 113 2 i 32 114 2 V 44 112 h 3 45 115 2 52 116 2 64 1 13 i 3 72 Disks S7 and 109 removed11 9t 4 99 115 3 117 116, 3 144 Disks 87 and 109 removed 2 192 1 Disks 87 and 109 re moved 288 Thus, by the mechanism described, a very wide-range of feed of the piston may be obtained with a desirable nicety of grada tionof-feed.

While the ratchet and controlling disks shown herein will produce feeds according to the aforesaid table, it will be understood that the invention is not limited thereto, but

that the number of teeth ofitherratchets and of the ratchet, respectively, it"isimportant 15.

that the position of said ratchet relatively to its actuating pawl should be such that the pawl will drop back of the second and third tooth respectively, and engage the series of teeth of said ratchet which will allow the control pawl to drop into the notches of the controllingdisks. To insurethis operation, a tooth blanking member 131 (Fig. 7) may be pivotally mounted oniarivet secured to the upper face of the ratchet 93 adjacent the periphery thereof. T his member hasza projection of an extent sufficient to cover one tooth space of the ratchet, and a projection 13? of an extent sufficient to cover two teeth spaces of said ratchet.

When it is desired to change from a onetooth-step feed to a two-tooth-step feed the pin 117 isshifted to the hole 121. llhen the actuating pawl, instead of advancing each tooth of the ratchet, will advance a series of alternate teeth of said ratchet.

This series should be such that it will member, in the course of a rotation of the ratchet, will shift the pawl to the other series of alternate teeth and thus insure the feed of the feed ratchet.

Similarly, then it is desired toproduce a three-tooth-step feed, thepin 117 is shifted to the hole 123, and the blanking member is adjusted to its position shown in Fig. '7 to blank two teeth spaces, thereby insuring that the actuating pawl shall'advance a series of teeth of the ratchet which will allow the control pawl to drop intothe notches of the control disks, and insure the feed of the feed 7 ratchet.

The blanking member may be adjusted to its inactive position shown in Fig. 7 when the'ratcheti's advancedsingle tooth steps. To hold the blanking member in its three positions of adjustment, it may have a nub 141 (Fig. 7) presed therefrom adapt ed to enter any of three holes 143 insaid slip from one hole to an0ther.

ratchet The blanking membermay be of a' resilience such that the nub may readily In; operation, .the'inkroller's will reciprocate-over the inkdistributing disk and the form, and each time they move over the'disk they will pass beneath the cylinder head 21 and receive ink delivered through the slit 23, the upturned lip 27 facilitatingpassage :of therollers between the head'and the disk. More or less ink will be fed through the slit according to the adjustm nts of the inking device described. The construction is such that the pawl zcarrying arm .69 is reciprocated once in each. reciprocation of the ink rollers, and the piston may be advanced a step for" each. reciprocation of the rollers, or it may be advanced a step in more than one reciprocation of said rollers. Thus, the feed of the ink on the rollers may be desirably proportioned to the' reciprocations thereof. However, the ink will always be positively fed and aselected proportionate feed maintained. 7 As a consequence, the ink willloe uniformly fed so long as each adjustment of. the feed deviceis ineflect and successive impresses of uniform quality will be obtained. 7 V 2 It will be'understood that'the invention is not l. limited to the specific embodiment shown,,but that various deviations may be made therefrom without departing from the spirit and scope of theappended claims.

" Vi hat is claimed is i 1. An inking device for a printing press comprising an ink receiver, a piston therein, and means for feeding said piston to force the ink from said receiver including a feed ratchet, a pawl for engagement with teeth of said ratchet to advance the same step-bystep, a notched disk, anidler ratchet connected to said notched disk, a pawl to advance said idler ratchet steprby-step, and a pawl coiiperatingwith said notched disk connected to said feed ratchet pawl to prevent the latter from advancing said feed ratchet.-

2. An inking device-for a printingpress comprising an ink receiver, a piston therein, and meansfor feeding said piston to force the ink from said receiver including a feed ratchet, a pawl for engagementv with teeth of'said ratchet to advance the same step-bystep, and means including a pawl and notched disk for controlling the active engagement of said feed pawl with said feed ratchet.

'3. An inking device for a printing press comprising 'anink receiver, a piston therein, and means. for feeding said piston to force the ink from saidreceiver including a feed ratchet, a'pawl for engagement with said ratchet to advance the same step-by-step, and

means including a pawl and. notched disk for controlling the actlve engagement of said feed pawl with said feed ratchet, and means for varying the number of effective notches of said disk.

4. An inking device for a printing press comprising an ink receiver, and means to force ink therefrom including a feed pawl and ratchet, an actuating ratchet, a pawl for advancing said actuating ratchet, and means actuated by said actuating ratchet for permitting said feed pawl to actively engage predetermined teeth of its ratchet.

5. An inking device for a printing press comprising an ink receiver, and means to force ink therefrom including a feed pawl and ratchet, an actuating pawl and ratchet,

a notched controlling disk advanced by the latter, a pawl cooperating with said controlling disk for controlling said feed pawl, and a supplemental notched controlling disk for varying the effective notches of said controlling disk.

6. An inking device for a printing press comprising an ink receiver, and means to force ink therefrom including a feed pawl and ratchet, an actuating pawl and ratchet, a notched disk and pawl forcontrolling said feed pawl, said disk being advanced by said actuating pawl and ratchet, means to recip rocate said actuating pawl to advance its ratchet steps, each equal to one or more teeth of said ratchet, alternatively, and a tooth blanking device on said actuating ratchet to insure advance of a series of teeth of the latter which will allow said controlling pawl to drop into the notches of said controlling disk.

7 An inkingdevice for a printing press comprising an ink receiver, and means to force ink therefrom including a feed pawl and ratchet, an actuating pawl and ratchet, a notched disk and pawl for controlling said feed pawl, said disk being advanced by said actuating pawl and ratchet, means to reciprocate said actuating pawl to advance its ratchet steps, each equal to one or more teeth of said ratchet, alternatively, and means to insure that the actuating pawl shall advance a series of teeth of said actuating ratchet to allow the controlling pawl to enter notches of said disk.

8. The combination with a support, of an ink distributing plate thereon, inking rollers movable over said plate, an ink receiver, and means to force ink from said receiver to said rollers including a ratchet, a pawl, superposed members, one carrying said pawl and reciprocable relatively to the other, said members having apertures therein, spring means tending to move said pawl carrying member in one direction, and a reciprocable tapered element projecting through said apertures for moving said pawl carrying member in the opposite direction.

9. The combination with a support, of an ink distributing plate thereon, inking rollers movableover said plate, an ink receiver, and means to force ink from said receiver in cluding a pawl and ratchet, a pair of relatively movable members having apertures therein, one of said members being operatively connected with saidpawl, and an ele ment of varying cross-section projecting through said apertures and reciprocable to cause the relative movement of said members for actuating said pawl.

10. An inking device for a printing press comprising an ink receives, a piston therein, and means for feeding said piston to force the ink from said receiver including a feed ratchet, a pawl therefor, means to reciprocate said pawl, and automatically rotated controlling means for regulating the extent ofthe increment advance of the ratchet by said pawl with provision for allowing said pawl to engage every tooth of said ratchet or selected teeth of said ratchet.

In testimony whereof, I have signed my name to this specification.

HERBERT L. SARGENT. 

